2018 Lexus IS300 Engine Cooling Parts

Name: Carquest Cooling System Tester Adapter, 12025
Brand: Carquest Premium
SKU: 12025
Price: 98.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2018 Lexus IS300 in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 2018 Lexus IS300 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Water Pumps, Radiator Caps, and Radiators. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium and Felpro. For example, Carquest Premium Engine Cooling Parts start at just $10.99 with an average 4.5 star rating. Felpro offer similar pricing and quality, backed by strong customer feedback. With over 461 reviews and a solid 4.1 star average, you can shop with confidence knowing other Lexus IS300 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2018 Lexus IS300 Engine Cooling Part at Advance Auto Parts is around $80.21, with a range that starts at $6.49 and goes up to $287.99. With 19 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Carquest Coolant Temperature Sensor, WTC1005, Carquest Multi-Purpose Relay, RAA1733, and Motorad Integrated Thermostat Housing: With Seal, 180 Degrees, 660-180 start at just $25.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 2018 Lexus IS300 in peak condition, inside and out.

Looking for the perfect Engine Cooling Part for your 2018 Lexus IS300? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Lexus IS300. Whether you’re driving a 2018 model or another popular model year like 2003, 2004, 2005, 2016, 2017, 2019, 2020, 2021, and 2022, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.

Essential 2018 Lexus IS300 Engine Cooling Parts

Carquest Cooling System Tester Adapter, 12025

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$98.99

Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive cooling systems.

AISIN Engine Coolant Temperature Sensor, THSAZ-8003

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$56.99

AISIN is a leading manufacturer of cooling products for automotive applications, including water pumps and timing belt kits. Our products are known for their high-quality durability and efficient performance, making them a popular choice among car manufacturers and auto enthusiasts alike.

AISIN Engine Coolant Temperature Sensor, THSAZ-8001

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$41.99

Carquest Fuel Cap Tester Adapter:, 12427

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Carquest Standard Thermostat: 180 Degrees, 14108

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$17.99

Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5298-180

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$28.99

This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

Carquest Coolant Housing/Water Outlet, CH6070

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$24.99

Carquest Premium Thermostat Housings are manufactured with OEM quality materials and safety standards by an OE Supplier. This housing will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. The construction of this housing is improved over the OE design to fix and update any issues that the OE design may have had.

Dorman Thermostat Assembly: Includes Housing, Gasket, and Thermostat, 180 Degrees, 902-5137

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$58.99

This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

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$99.99

New Standard Replacement Radiator Support Upper Tie Bar, Center Bar, Made Of High Strength Steel

Carquest Engine Water Pump: New, Gasket/Seals Included, T5105

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$94.99

Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Carquest Radiator Cap Tester Adapter, 12024

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$17.99

Felpro Engine Coolant Outlet Gasket, 35767

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$3.29

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Felpro Engine Coolant Thermostat Housing Gasket, 35809

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$6.49

Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Carquest Engine Coolant Reservoir Cap, 10254

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$10.99

Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

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$21.99

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

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$16.99

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$309.99

Reach Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Reach Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

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$181.99

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$287.99

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$25.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Carquest Coolant Housing/Water Outlet: Includes Housing Cap, CH1086

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$176.99

Popular 2018 Lexus IS300 Engine Cooling Parts Categories

Radiators

Water Pumps

Engine Coolant Thermostat Housing Caps

Radiator Caps

Thermostats

Coolant Temperature Sensors

Water Outlets

Thermostat Housings

Thermostat and Water Outlet Gaskets

Radiator Support Tie Bars

Radiator Cap Tester Adapters

Heater Relays

Radiator Cap Adapters

Cooling System Tester Adapters

Most Popular Water Pump for 2018 Lexus IS300s

Enhance your 2018 Lexus IS300 with this popular Water Pump we have in stock, for $94.99.

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$94.99

Best-Selling 2018 Lexus IS300 Radiator Caps

Upgrade your IS300 with one of our 2 best-selling Radiator Caps, earning an average 4 stars rating across 4 reviews.

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$10.99

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$21.99

Top-Quality Radiators for 2018 Lexus IS300s

Choose a high-quality OEM or aftermarket Radiator for Lexus IS300s and enjoy top-notch performance from $181.99.

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$287.99

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$181.99

Top Picks for 2018 Lexus IS300 Thermostats

Invest in one of our 2 durable Thermostats for your 2018 Lexus, knowing you’re getting trusted brands and expert craftsmanship.

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Carquest Standard Thermostat: 180 Degrees, 1065-180

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$126.99

Carquest Standard Thermostat: 172 Degrees, 1064-172

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$65.99

Our Top-Rated Thermostat and Water Outlet Gaskets for 2018 Lexus IS300s

Make a smart move for your 2018 Lexus IS300 with our Thermostat and Water Outlet Gasket for $6.49.

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$6.49

Top-Rated Engine Cooling Part Brands For Your 2018 Lexus IS300

When it comes to finding the perfect Engine Cooling Part for your 2018 Lexus IS300, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Engine Cooling Part brands including Felpro and Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.6 stars) and competitive prices, as low as $6.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2018 Lexus IS300, providing peace of mind with parts that meet or exceed OEM standards.

Popular Felpro 2018 Lexus IS300 Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2018 Lexus IS300, Advance Auto Parts has exactly what you need with our selection of Felpro Engine Cooling Parts. We have 1 Felpro Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $6.49, you’ll find the perfect Engine Cooling Part for your needs and budget. Felpro Engine Cooling Parts for the 2018 Lexus IS300 come highly rated, with over 3 customer reviews and an impressive average rating of 4.6 stars. Choosing a Felpro Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $6.49

(3)

Felpro Engine Coolant Thermostat Housing Gasket, 35809

“Fits perfectly fine”

Top-Quality Carquest Premium 2018 Lexus IS300 Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2018 Lexus IS300, Advance Auto Parts offers a great selection of Carquest Premium Engine Cooling Parts. With 3 Carquest Premium Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $10.99, with an average price of $40.99, giving you a range of options to suit your budget. Backed by over 147 customer ratings and an average rating of 4.5 stars, Carquest Premium Engine Cooling Parts provide both reliability and excellent performance. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

from $10.99

(4)

Carquest Engine Coolant Reservoir Cap, 10254

“I had a difficult time finding a coolant reservoir cap for a Toyota Prius. Advance was the only place in town that carried them.”

from $16.99

(137)

Carquest Radiator Cap: 16 PSI, 10242

“This product fixed the problem.”

from $94.99

(6)

Carquest Engine Water Pump: New, Gasket/Seals Included, T5105

“Perfect”

FAQs for 2018 Lexus IS300 Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2018 Lexus IS300s?

Out of 19 Engine Cooling Parts that fit 2018 Lexus IS300s, the following parts are the top sellers:

Carquest Coolant Temperature Sensor, WTC1005 (12422776) – $39.99
Carquest Multi-Purpose Relay, RAA1733 (12459935) – $25.99
Motorad Integrated Thermostat Housing: With Seal, 180 Degrees, 660-180 (11357582) – $89.99

What’s the price range for 2018 Lexus IS300 Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2018 Lexus IS300 range from $6.49 up to $287.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2018 Lexus IS300?

The average price for Engine Cooling Parts for the 2018 Lexus IS300 is $80.21. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Lexus IS300 model years?

Yes, we carry Engine Cooling Parts for 13 model years of Lexus IS300s between 2001 and 2025. The following model years are the most popular for Engine Cooling Part purchases: 2022, 2021, 2020, 2019, 2017, 2016, 2005, 2004, and 2003.

What are the cheapest Engine Cooling Parts for my 2018 Lexus IS300?

The cheapest 2018 Lexus IS300 Engine Cooling Parts we carry are:

Felpro Engine Coolant Thermostat Housing Gasket, 35809 (11138875) – $6.49
Carquest Engine Coolant Reservoir Cap, 10254 (15480044) – $10.99
Carquest Radiator Cap: 16 PSI, 10242 (17110029) – $16.99
Carquest Radiator Cap Tester Adapter, 12024 (17090205) – $17.99
Carquest Radiator Cap: 16 PSI, ST37 (50168798) – $21.99

Does Advance Auto Parts sell Engine Cooling Parts for any other 2018 Lexus models?

Yes. We stock Engine Cooling Parts for 13 other popular 2018 Lexus models. Some of the most popular are 2018 ES350 Engine Cooling Parts, 2018 RX350 Engine Cooling Parts, 2018 GX460 Engine Cooling Parts, 2018 IS350 Engine Cooling Parts, and 2018 GS350 Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 2018 Lexus IS300?

Based on 461 reviews by customers, our 2018 Lexus IS300 Engine Cooling Parts have an average customer rating of 4.1 stars. These are the highest-rated categories of Engine Cooling Parts for the 2018 Lexus IS300 and their top-rated products:

Engine Coolant Thermostat Housing Caps
- Carquest Radiator Cap: 16 PSI, 10242 (17110029) – $16.99
Thermostat and Water Outlet Gaskets
- Felpro Engine Coolant Thermostat Housing Gasket, 35809 (11138875) – $6.49

What types of Engine Cooling Parts do you sell for my 2018 Lexus IS300?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 2018 Lexus IS300:

Can I get help with 2018 Lexus IS300 Engine Cooling Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Lexus Engine Cooling Parts and more.

What is your return policy for Lexus IS300 Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Lexus IS300 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2018 Lexus IS300 Engine Cooling Parts

Carquest Premium – Carquest Cooling System Tester Adapter, 12025 (Part No.12025)

AISIN – AISIN Engine Coolant Temperature Sensor, THSAZ-8003 (Part No.THSAZ-8003)

AISIN – AISIN Engine Coolant Temperature Sensor, THSAZ-8001 (Part No.THSAZ-8001)

Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12427 (Part No.12427)

Carquest Premium – Carquest Standard Thermostat: 180 Degrees, 14108 (Part No.14108)

Motorad UltraStats – Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5298-180 (Part No.5298-180)

Carquest Premium – Carquest Coolant Housing/Water Outlet, CH6070 (Part No.CH6070)

Dorman – Dorman Thermostat Assembly: Includes Housing, Gasket, and Thermostat, 180 Degrees, 902-5137 (Part No.902-5137)

KAI – KAI Radiator Support Tie Bar, LX1225125 (Part No.LX1225125)

Carquest Premium – Carquest Engine Water Pump: New, Gasket/Seals Included, T5105 (Part No.T5105)

Carquest Premium – Carquest Radiator Cap Tester Adapter, 12024 (Part No.12024)

Felpro – Felpro Engine Coolant Outlet Gasket, 35767 (Part No.35767)

Felpro – Felpro Engine Coolant Thermostat Housing Gasket, 35809 (Part No.35809)

Carquest Premium – Carquest Engine Coolant Reservoir Cap, 10254 (Part No.10254)

Carquest Premium – Carquest Radiator Cap: 16 PSI, ST37 (Part No.ST37)

Carquest Premium – Carquest Radiator Cap: 16 PSI, 10242 (Part No.10242)

Carquest Premium – Carquest Radiator, 432635 (Part No.432635)

Carquest Premium – Carquest Radiator, 813477 (Part No.813477)

Carquest Premium – Carquest Radiator, 813612 (Part No.813612)

Carquest Premium – Carquest Multi-Purpose Relay, RAA1733 (Part No.RAA1733)

Carquest Premium – Carquest Coolant Housing/Water Outlet: Includes Housing Cap, CH1086 (Part No.CH1086)

Carquest Premium – Carquest Engine Water Pump: New, Gasket/Seals Included, T5105 (Part No.T5105)

Carquest Premium – Carquest Engine Coolant Reservoir Cap, 10254 (Part No.10254)

Carquest Premium – Carquest Radiator Cap: 16 PSI, ST37 (Part No.ST37)

Carquest Premium – Carquest Radiator, 813612 (Part No.813612)

Carquest Premium – Carquest Radiator, 813477 (Part No.813477)

Carquest Premium – Carquest Standard Thermostat: 180 Degrees, 1065-180 (Part No.1065-180)

Carquest Premium – Carquest Standard Thermostat: 172 Degrees, 1064-172 (Part No.1064-172)

Felpro – Felpro Engine Coolant Thermostat Housing Gasket, 35809 (Part No.35809)